Modular rack

Abstract

A modular rack includes a number of lower legs and upper legs, one or more shelves to be selectively secured between the lower legs and the upper legs, one or more housing secured to the shelves, one or more sleeves may be engaged between the lower legs and the housing and the lower plates for anchoring the lower legs to the housing and the shelves, one or more connectors may be engaged between the upper legs and the shelves and the upper plates for anchoring the upper legs to the shelves and the housing, and for forming an improved or reinforced structure for allowing the modular rack to be solidly assembled together to form a stable structure.

1 . A modular rack comprising:
 a shelf including at least one opening formed therein,   a housing secured to said shelf and including at least one orifice formed therein,   a back-up device disposed in said housing and including a first plate and a second plate secured to said housing, said first and said second plates each including an aperture formed therein, said aperture of said first plate being aligned with said at least one orifice of said housing, said aperture of said second plate being aligned with said at least one opening of said shelf,   at least one first leg including a first end engageable into said at least one orifice of said housing and said aperture of said first plate,   a sleeve engageable between said at least one first leg and said housing and said first plate for anchoring said at least one first leg to said housing and said shelf,   at least one second leg including a first end engageable into said at least one opening of said shelf and said aperture of said second plate, and   a connector engageable between said at least one second leg and said shelf and said second plate for anchoring said at least one second leg to said shelf and said housing.   
   
   
       2 . The modular rack as claimed in  claim 1 , wherein said connector includes a tubular member engaged into said at least one opening of said shelf and said aperture of said second plate of said back-up device and engaged between said at least one second leg and said shelf and said second plate of said back-up device. 
   
   
       3 . The modular rack as claimed in  claim 2 , wherein said tubular member of said connector includes an inclined outer peripheral surface formed thereon for forming said tubular member into a wedge engaging member and to be wedged between said at least one second leg and said shelf and said second plate of said back-up device. 
   
   
       4 . The modular rack as claimed in  claim 3 , wherein said second plate of said back-up device includes a peripheral fence extended therefrom for forming said aperture of said second plate and for engaging with said tubular member. 
   
   
       5 . The modular rack as claimed in  claim 4 , wherein said peripheral fence of said second plate of said back-up device includes an inclination for engaging with said inclined outer peripheral surface of said tubular member. 
   
   
       6 . The modular rack as claimed in  claim 2 , wherein said connector includes a peripheral skirt extended around said tubular member for engaging with said shelf. 
   
   
       7 . The modular rack as claimed in  claim 6 , wherein said connector includes a peripheral channel formed between said tubular member and said peripheral skirt, and said shelf includes a peripheral fence extended therefrom for forming said at least one opening of said shelf and for engaging into said peripheral channel of said connector. 
   
   
       8 . The modular rack as claimed in  claim 1 , wherein said sleeve includes an inclined outer peripheral surface formed thereon for forming said sleeve into a wedge member and for being wedged between said at least one first leg and said housing and said first plate of said back-up device. 
   
   
       9 . The modular rack as claimed in  claim 8 , wherein first plate of said back-up device includes a peripheral fence extended therefrom for forming said aperture of said first plate and for engaging with said sleeve. 
   
   
       10 . The modular rack as claimed in  claim 9 , wherein said peripheral fence of said first plate of said back-up device includes an inclination for engaging with said inclined outer peripheral surface of said sleeve. 
   
   
       11 . The modular rack as claimed in  claim 8 , wherein said housing includes a peripheral fence extended therefrom for forming said at least one orifice of said housing and for engaging with said sleeve. 
   
   
       12 . The modular rack as claimed in  claim 11 , wherein said peripheral fence of said housing includes an inclination for engaging with said inclined outer peripheral surface of said sleeve. 
   
   
       13 . The modular rack as claimed in  claim 1 , wherein said back-up device includes an end segment coupling said first and said second plates together and secured to said housing. 
   
   
       14 . The modular rack as claimed in  claim 1 , wherein said first and said second plates of said back-up device each include a side flap extended therefrom and secured to said housing. 
   
   
       15 . The modular rack as claimed in  claim 1 , wherein said first and said second plates of said back-up device each include at least one reinforcing rib extended therefrom.